Safety razor having adjustable guards



16, 19 B JEX'AN-BAPTISTEI R. smmm' 2,313,895

SAFETY RAZOR HAVING ADJUSTABLE GUARDS Filed lfeb. 11, 1939 ATTORNEY6Patented Mar. 16, 1943 SAFETY RAZQB HAVING ADJUSTABLE GUARDSJeane-Baptiste Raoul Savant, :Paris, France; :VfiStBfl in the AlienProperty Custodian :4 Qlaims- "Ihe pr s n invention as for obj ct mp ements in safety razors having movable guards. The problem, whichiissolved by the app cant onsistsinensu ng, man he v ry difierenpcitions of holding the razor, and according to the pressure exerted bythe user, -a modification of the amount by Which the cutting edge of theblade projects relatively to the plane tangent to the cap and .to theguard, while the distance separating the guard from the cutting edge ofthe blade either remains unaltered or is temporarily decreased when thepressure exerted by the user increases. 7

According to the invention, the safety razor having adjustable guardsand in which the blade is held rigidly in position, is characterised bythe fact that each guard is resiliently mounted or is so devised as toconstitute a yieldingly shiftable element which can move towards thecutting edge of the blade, in proportion as the pressure exerted by theuser increases, whilst ensuring an increase of the amount by which theblade projects relatively to the plane tangent to the cap and to thecorresponding guard.

In the accompanying drawing, given by way of example only:

Fig. l is a general elevation of a razor devised according to theinvention.

i Fig. 2 is a section made according to line II-II of the precedingfigure.

Fig. 3 is a partial elevation of another form of construction andshowing the resilient mounting of an automatically adjustable guard.

Fig. 4 is a section made according to line IVIV of the preceding figure.

Fig. 5 is a general elevation of a modification oi the razor illustratedin Fig. 1.

Fig. 6 is a section made according to line VIVI of the preceding figure.

In the example of Figs. 1 and 2, each guard 8 which has the form of acam, is freely journalled on spindles 90. According to the invention, a

spring 9| is partially wound on the spindle 90 and its ends areconnected, one to the corresponding cam and the other to the lateralextension 55 of the seating member 2. A spring such as 9| is mounted atboth ends of each guard. In a modification, a singlespring is used whichextends along the seating member for connecting one guard to the other.The various springs are suitably devised so as toallow a slightdisplacement of the cams or guards 8 when the latter are applied on theskin with a certain pressure. Thus, an automatic adjustment of theposition of the plane tangent to the cap and to 1 held stationarybetween the corresponding ,guard is obtained and, consequently, anautomatic adjustment of the inclination of the cutting edge of the bladeand of the amount "by which said cutting edge projects relativelyto saidplane.

Figs. 3 and 4 illustrate another form of K3011- struction in which thecam or guardll is mounted on .a spindle .90 by means of a rubber ring 94or the like, said guard being angularly held between extensions 55 ofthe seating member 2. This ring can be compressed in position orobtained by spirally winding a rubber band rendered rigid through anysuitable means (sticking, vulcanization) with the spindle!!!) and theguard 8. Preferably, said ring is connected to the spindle and to asocket 95 which is engaged in a. corresponding perforation formed in cam8, said socket 95 being then angularly connected to the cam.

The resilient mounting thus obtained operates substantially in the samemanner as that indicated with reference to Figs. 1 and 2.

In the embodiment illustrated in Figs. 5 and 6, use is made of amounting similar to that of Fig. 1. The ends of the springs 9| tend tourge the guards 8, 8 outward by pressing against corresponding abutmentsof the seating member 55 and of cam 8. Moreover, each guard 8 comprisesa curved part B What I claim as my invention and desire to secure byLetters Patent is:

1. In a safety razor, in which the blade is held stationary between acap and a corresponding seating member, movable guards having mountingsspaced below the seating member, resilient means for constantlyretaining the guards resiliently projecting out beyond the cutting edgesof the blade and constantly tending to prevent the displacement of theguards inwardly from said projecting positions, so that each guard movesinwardly towards and beneath the cutting edge of the blade in proportionas the pressure exerted directly against said guards by the userincreases during use, while ensuring an increase of the amount by whichthe blade projects relatively to the plane tangent to the cap and to thecorresponding guard, and means preventing the projection of each movableguard outward beyond a predetermined position beyond the blade.

2. In a safety razor, in which the blade is a cap and a correspondingseating member, movable guards resiliently mounted so as to beconstantly retained resiliently projecting out beyond the cutting edgesof the blade and so that each guard moves inwardly towards and beneaththe cutting edge of the blade in proportion as the pressure exerted 7directly against said guards by the user increases during use, whileensuring an increase of the amount by which the blade projectsrelatively to the plane tangent to the cap and to the correspondingguard, each guard having a mounting spaced below the seating member, andmeans preventing the projection of each movable guard outward beyond apredetermined position beyond the blade. 5

3. In a safety razor, in which the blade is held stationary between acap and acorresponding seating member, freely movable pivoted guards,spindles spaced beneath the seating member constituting pivots for theguards and springs wound on said spindles having ends which respectivelypress on said guards and the seating member of the blade so as'tomaintain the guards resiliently projecting out beyond the cutting edgesof the blades and tending to prejects relatively to the plane tangent tothe cap and to the corresponding guard, and means preventing theprojection of each movable guard outward beyond a predetermined positionbeyond the blade.

4. In a safety razor in which the blade is held stationary between a'capand a corresponding seating member movable guards having pivotalmountings including spindles spaced below the seating member, resilientmeans including a rubber member mounted directly upon each spindle andurging the guard associated therewith resiliently outward away from theblade to project beyond the adjacent cutting edge thereof and constantlytending to prevent displacement of the guard inwardly from itsprojecting position, so that each guard moves inwardly towards andbeneath said adjacent cutting edge of said blade in proportion as thepressure exerted directly against said guard by the user increasesduring use, while-ensuring an increase of the amount by which the bladeprojects relatively to the plane tangent to the cap and to thecorresponding guard, vand said resilientmeans also preventing theprojection of each of the guards outward substantially be% yond apre-determined position beyond the blade. 7 a

' JEAN-BAPTISTE RAOUL SAVARY.

